The oblique S parameter in Higgsless electroweak models

Rosell, Ignasi
October 2012
AIP Conference Proceedings;Oct2012, Vol. 1492 Issue 1, p45
Academic Journal
We present a one-loop calculation of the oblique S parameter within Higgsless models of electroweak symmetry breaking. We have used a general effective Lagrangian with at most two derivatives, implementing the chiral symmetry breaking SU(2)LxSU(2)R→SU(2)L+R with Goldstones, gauge bosons and one multiplet of vector and axial-vector resonances. The estimation is based on the short-distance constraints and the dispersive approach proposed by Peskin and Takeuchi.


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